Counting Atoms in Chemical Formulas Practice

Front

What do coefficients in chemical formulas do?

Back

Multiply EVERYTHING!

Front

How many atoms are present if there is no subscript following the element symbol?

Back

only 1

Front

How many atoms of hydrogen are in a molecule of glucose (C6H12O6)?

Back

12

Front

How many carbon atoms are in 2C6H12O6?

Back

12

Front

How many Hydrogen atoms (H) are in a molecule of H2O?

Back

2

Front

What does a subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

What is the total number of atoms in H2O?

Back

3 (2 Hydrogen + 1 Oxygen)

Front

If a molecule has a coefficient of 3 in front of it, how many of each atom does it contain?

Back

Multiply the number of each atom by 3.

Front

What is the formula for calculating the total number of atoms in a compound?

Back

Add the number of atoms of each element, considering coefficients and subscripts.

Front

In the formula C3H8, how many carbon atoms are there?

Back

3